Model: 21, Orifice Diameter: 1 (2 mm), Valve/Body Configuration: 0 (N.C./Single Unit), Solenoid Valve Option: A (Brass Body, FKM Seal, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread Type: N (NPT), Voltage: 6 (12VDC), Lead Wire: C (Conduit)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: M (SS, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: F (G), Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: Z (w/Light and Surge Voltage Suppressor), Rectifier: None (for DC or AC Class H Coil)

Rated Flow Range: 01 (0.01 to 1 L/min), Flow Adjustment Valve: None (Straight), Port Size: N1 (NPT1/8), Output Specification: L (Out 1: IO-Link or NPN/PNP), Lead Wire: Q (w/M12 Conversion Lead Wire and Connector, 0.1m)

Model: 31, Orifice: 1 (1.5mm), Style: 2 (N.O., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: F (G), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: F (G), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier)

Body Size: 20, Backflow: w/o Backflow Function, Thread: Rc, Port Size: 01 (1/8), Options: E1 (Output: NPN; Electrical Entry: Wiring Bottom Entry), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: CE3 (C + E3), Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Ported), Voltage: 6 (12VDC), Electrical Entry: G (Grommet), Orifice Size: 40 (4mm), Port Size: 01 [Base Mount w/Sub-Plate 1/8(6A) or Body Ported 1/8(6A)], Thread Type: N (NPT), Body/Seal Material: Body C37, Seal FKM, Option: F (Foot Bracket)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 01 (1/8), Options: BE (B+E), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Thread: F (G), Port Size: 01 (1/8), Option: w/o Mounting Option, w/o Pressure Gauge, Semi-Standard: 1NRY (1 + N + R + Y)

Body Size: 20, Thread: F (G), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: 2 (Metal Bowl), Semi-Standard 2: Standard

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: 6 (Nylon Bowl), Semi-Standard 2: Standard

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: G (Round Type Pressure Gauge w/Limit Indicator), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Base Mounted), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Orifice Size: 16 (1.6mm), Port Size: 01 [Base Mount w/Sub-Plate 1/8(6A) or Body Ported 1/8(6A)], Thread Type: F (G), Body/Seal Material: H (Body SUS, Seal FKM)

Function: 1 (2 Position Single), Body Option: 00 (Base Mounted Plug-in), Pilot: Internal Pilot, Voltage: 6 (12VDC), Lead Wire: F (Plug-in), Surge Suppressor: None, Manual Override: Non-locking Push Style (Flush), Port Size: 01 (Base Mounted w/Sub-plate 1/8 Side Piping), Thread: T (NPTF)

Body Size: 20, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: w/o Backflow Function, Thread: Rc, Port Size: 01 (1/8), Options: E (Square Embedded Type Pressure Gauge, w/Limit Indicator), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Controller Mounting: S (Screw Mounting), Cable Length: 1 (1 m), Inlet Port Silencer: A (AN10-01, 62 dB), Digital Pressure Switch: (None), Exhaust Check Valve: K (AKH06-00, for 6mm tubing)

Body Size: 1, Set Pressure: 0 (0.02 to 0.2 MPa), Exhaust Direction: 0 (Bottom Exhaust), Thread: Rc, Port Size: 01 (1/8), Option: H (w/Hexagon Panel Nut, for Panel Mount), Semi-standard: None